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STP P80-2



The space test program P80-2 spacecraft is an ascent Agena (similar to SEASAT) which is modified to carry orbital experiments on the forward structure. High electric power requirements are met by flexible roll-out solar array panels which extend from the Agena. The twilight sun-synchronous orbit allows deployment of the array perpendicular to the insolation vector. Experiment data may be read out by ground stations or may be recorded for subsequent transmission to the ground stations. The investigations will test a deep-space-viewing infrared telescope with active cryogenic refrigeration, and measure solar flare iostopic composition.

Alternate Names

  • P80-2
  • Space Test Program P80-2
  • STPP80-2

Facts in Brief

Launch Date: 1981-01-01
Launch Vehicle: Atlas F
Launch Site: Vandenberg AFB, United States
Mass: 2430 kg

Funding Agency

  • Department of Defense-Department of the Air Force (United States)


  • Solar Physics
  • Astronomy

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Maj William J. NiemannProject ManagerUS Air Force Space Division
Dr. John R. StevensProject ScientistAerospace Corporation
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